Resources for the Radiology Core Exam

This is a brief discussion of commonly used and discussed resources for the ABR Core Exam. As I discussed in this lengthy post, there a lot of good but no perfect resources for the Core exam. As such, pick a few that feel right and never look back. You’ll be fine.


Both are great and approach the field/content from different perspectives. Core Radiology is a rapid diagram-heavy approach to both real and “classic” radiology. CTC is a comically cynical approach to passing the test. One by itself is fine, but I’d argue the combination is synergistic. No other textbooks are worth your time in the acute phase of studying (don’t go reading Brant & Helms the spring of your R3 year…).



There are 5 dedicated commercial question banks for the Core Exam: RadPrimer, Qevlar, Face The Core, RadsQuestions, and BoardVitals. I discuss them at length in this rundown. Suffice to say that if your program pays for a RadPrimer subscription, you can be comfortable knowing that despite its flaws it is a great resource for the Core and no additional large purchases are necessary. The competitors each have their own pros/cons and are worth consideration as additional question sources. More recently, Aunt Minnie released a free board review question bank (let me know your thoughts).


Case Books

Case Books hit most of the same highlights as qbanks do. I would generally approach in order of A Core Review (designed for the Core Exam) > RadCases (which are still question-based) > Case Review Series.

“A Core Review” deserves some more discussion, as it’s a new series composed entirely of Core-like case questions. Each book is made up of 300 questions and explanations and comes with online access via Inkling, which allows for not only well designed online access (and a phone app) but also the ability to use the book like an actual qbank.

Its style and content is highly tailored for the Core and largely follows the Core “study guide,” and 300 questions per topic is a more complete tour than offered by many resources. These are great resources with a healthy but not exhaustive number of cases and should be enough to be confident with each section. Nucs physics and RISE is covered, but not enough for comfort.

Current volumes in the series (all include great integrated physics):

If your program has a budget, ask them to buy the whole series for its library.

Alternative series: RadCases and Case Review Series, both of which predate the Core exam. I prefer RadCases over CRS.

Alternatives: Aunt Minnie’s Atlas and Top 3 Differentials are still great books (and Top 3 was perfect for the oral boards), but neither is geared toward the Core. I’d still buy them both again with my book fund any day but wouldn’t be reading either in May.

For Cardiac MRI, especially for those without a dedicated cardiac rotation, see UVA’s nice free online cardiac MRI primer.


Common resources for physics:

RSNA physics modules:
The RSNA modules are historically the most common way to learn physics. On the one hand, they’re a totally free comprehensive animated/illustrated overview of physics, and they have basically everything you need including built-in assessments/questions (sometimes/often over the top). On the other hand, they’re super dry and I hate them. There are several modules that are antiquated and completely irrelevant. While I’ve done some of them in past years during physics reviews, I purposefully didn’t use them for Core review as a proof of concept.

If doing the RSNA modules, I would recommend skipping the entire section for “Basic Imaging Science and Technology” and lessons 3-5 of “Projection X-Ray Imaging,” which are over the top and talk too much about film. I’d also skip “Imaging Gently: CT Imaging and Radiation Protection of Pediatric Patients” as being not worth your time.

Radiologic Physics War Machine:
Probably the best rundown of physics in plain English you’re going to find at this point. There are plenty of downsides to Prometheus Lionhart’s books, but they don’t detract enough to change my belief that they’re the best Core-specific resource for people hoping to learn enough physics to pass. I review them at length here.

Radiology Physics 300
I’m not big into must-haves, but if you have iOS, this is about as close as I’ll get. It’s got more than a few flaws, but RP300 is a fantastic resource for the kind of physics you’ll see on the Core. The developer abandoned this app and it’s no longer available. You can consider its spiritual successor, Radiology Core: Physics Plus.

Calisi (added 2018)

A new, free, physics qbank, including a score-predictor, physics self-assessment, and free Android app.

Why bother? There is a high-yield Huda summary floating around that’s also popular, but frankly, given how readable War Machine is, it’s hard to recommend Huda as your only text (and you probably only really need one). It’s a safe skip, unless you want something with more bullet points and less snark.

May have been an awesome question source back during the days of the dedicated physics exam, but the thrust of Raphex questions misses the mark. There are tons of calculations and other questions that you’re just not going to see. Your program may buy it for you, in which case go for it if you really want to, but it’s definitely not necessary. There are also a surprising number of errata (the last thing you want with confusing physics), and the whole experience can be a demoralizing beatdown. A safe skip.

Duke Review of MRI Principles
A nice book early on if your program doesn’t give you a foundation in MR. MR physics is super scary, but the level of MR physics actually required on the Core is almost laughable. It’s a fantastic book, but you don’t need it for the Core specifically. This would be a book to read in the fall for someone who wants to actually give themselves the foundation they never had. It’s too much of a time investment for the spring.

All of the qbanks have physics questions. They tend to throw in too many old school board questions and mechanical + film esoterica, but they usually also cover the important stuff too. Paying attention to qbank physics is more important if you don’t have Physics 300 to test your mettle. If a question seems super detail-oriented about film radiography or old school fluoro, don’t sweat it. These products haven’t all gotten the memo. Except nucs: learn every nucs and radioisotope safety detail you can, they’re all fair game. Contemporary integrated physics questions are also found in the excellent “A Core Review” series (see discussion below). While the old standby Physics 300 app is long defunct, there is a newer “Radiology Core Physics Plus” available on iOS & Android (reviews are mixed).



Recognizing and fixing/improving common artifacts (e.g. streak artifact and chemical shift; not image intensifier fluoroscopy artifacts) is an important skill for the Core Exam and for life. None of the question resources test this as well as I’d like, and while the material is covered well enough in CTC/RPWM, that too would have benefited from more examples.

Radiographics has solid articles on artifacts in US and artifacts in MRI (and another article with some additional background and artifact discussion).


Nucs suffering

There is a nice high-yield summary of useless nucs microdetails here:



The classic go-to video collection for years was from UCSF (still good if your program has a copy). Over time, an infinite number of additional videos have cropped up from the corners of the internet. One nice curated collection is AUR’s Diagnostic Radiology Resident Core Curriculum Lecture Series.


Review Courses

I don’t know anything about them and am honestly not sure why anyone would go to one unless it’s a paid vacation from your program. For those wondering though, Huda may have retired, but the Huda course lives on (and is moving online). But if you want to study during your commute, someone’s even made a Core Review podcast.


NM 03.30.17 Reply

Our program pays for the Huda course. Of course it seems I’d be better off reading his book before attending but that CCT Physics is a better text. I know you didn’t go to the Huda course, but what’s your take on reading the Huda book vs CCT before the review course? Thanks.

Ben 03.30.17 Reply

With the disclosure that I’ve only glanced through Huda but did read War Machine, I don’t really see a role for Huda in 2017 for residents with the primary goal of passing the test.

R 03.27.18 Reply

Does anyone know what happened to the Physics 300 app? Can’t seem to be able to find it on the iTunes store

Ben 03.27.18 Reply

It appears that the developer stopped updating the app and it became incompatible with recent updates to iOS. Bottom line is that it’s no longer available. I’ve scoured online in the past to contact the developer and was never able to find any contact info. They seem to have disappeared.

R 03.29.18

Oh that’s too bad. Thanks for looking into it!

generalduke 04.02.18 Reply

Heard about Radiology Core: Physics as the new physics 300 app, got the trial which is 63 questions but i am unimpressed from what I have seen of the old physics 300. The full app has I think 500 questions. Are these the same people as physics 300? Anyone try this out before I purchase?

Ben 04.02.18 Reply

Different guy entirely. There are no reviews at all. I glanced through the trial a while back and it seemed more or less okay. Didn’t love the explanations.

generalduke 04.03.18

Thanks Ben. Ya the explanations are what I had the biggest problem with, or rather the complete lack of explanations for many questions, which essentially just say whether or not you got the question right. Granted most have explanations, however given this is a TRIAL I suspect they picked the 40 or so questions that actually have written explanations into the trial, then filled another 23 with questions without explanation, and the rest of the 500 has no explanation at all.

Aaron 07.16.20 Reply

Hey Ben,

Any new textbooks coming down the pipeline to replace Core Radiology? Core hasn’t been updated in 7 years, seems like we should be getting something new at some point. Thoughts?

Ben 07.16.20 Reply

I agree it’s due for an update, but I haven’t seen that one is coming or heard of anything else coming down the pipes. Not too much has changed over the period though, I’d still use it.

Ben 05.25.22

(It was eventually updated)

Jay 05.25.22 Reply

The link for the nucs rad share is not working. Does anyone have a copy of it?

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